CultureInfo.ReadOnly(CultureInfo) Metoda
Ważne
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Zwraca otokę tylko do odczytu wokół określonego CultureInfo obiektu.
public:
static System::Globalization::CultureInfo ^ ReadOnly(System::Globalization::CultureInfo ^ ci);C#
public static System.Globalization.CultureInfo ReadOnly (System.Globalization.CultureInfo ci);static member ReadOnly : System.Globalization.CultureInfo -> System.Globalization.CultureInfoPublic Shared Function ReadOnly (ci As CultureInfo) As CultureInfo- ci
- CultureInfo
Obiekt CultureInfo do zawijania.
Otoka tylko do CultureInfo odczytu wokół ci.
ci ma wartość null.
W poniższym przykładzie pokazano, że ReadOnly metoda pomaga chronić DateTimeFormatInfo wystąpienia i NumberFormatInfo skojarzone z programem CultureInfo.
using namespace System;
using namespace System::Globalization;
int main()
{
// Creates a CultureInfo.
CultureInfo^ myCI = gcnew CultureInfo( "en-US" );
// Creates a read-only CultureInfo based on myCI ->
CultureInfo^ myReadOnlyCI = CultureInfo::ReadOnly( myCI );
// Display the read-only status of each CultureInfo and their DateTimeFormat and NumberFormat properties.
Console::WriteLine( "myCI is {0}.", myCI->IsReadOnly ? (String^)"read only" : "writable" );
Console::WriteLine( "myCI -> DateTimeFormat is {0}.", myCI->DateTimeFormat->IsReadOnly ? (String^)"read only" : "writable" );
Console::WriteLine( "myCI -> NumberFormat is {0}.", myCI->NumberFormat->IsReadOnly ? (String^)"read only" : "writable" );
Console::WriteLine( "myReadOnlyCI is {0}.", myReadOnlyCI->IsReadOnly ? (String^)"read only" : "writable" );
Console::WriteLine( "myReadOnlyCI -> DateTimeFormat is {0}.", myReadOnlyCI->DateTimeFormat->IsReadOnly ? (String^)"read only" : "writable" );
Console::WriteLine( "myReadOnlyCI -> NumberFormat is {0}.", myReadOnlyCI->NumberFormat->IsReadOnly ? (String^)"read only" : "writable" );
}
/*
This code produces the following output.
myCI is writable.
myCI -> DateTimeFormat is writable.
myCI -> NumberFormat is writable.
myReadOnlyCI is read only.
myReadOnlyCI -> DateTimeFormat is read only.
myReadOnlyCI -> NumberFormat is read only.
*/
C#
using System;
using System.Globalization;
public class SamplesCultureInfo {
public static void Main() {
// Creates a CultureInfo.
CultureInfo myCI = new CultureInfo( "en-US" );
// Creates a read-only CultureInfo based on myCI.
CultureInfo myReadOnlyCI = CultureInfo.ReadOnly( myCI );
// Display the read-only status of each CultureInfo and their DateTimeFormat and NumberFormat properties.
Console.WriteLine( "myCI is {0}.", myCI.IsReadOnly ? "read only" : "writable" );
Console.WriteLine( "myCI.DateTimeFormat is {0}.", myCI.DateTimeFormat.IsReadOnly ? "read only" : "writable" );
Console.WriteLine( "myCI.NumberFormat is {0}.", myCI.NumberFormat.IsReadOnly ? "read only" : "writable" );
Console.WriteLine( "myReadOnlyCI is {0}.", myReadOnlyCI.IsReadOnly ? "read only" : "writable" );
Console.WriteLine( "myReadOnlyCI.DateTimeFormat is {0}.", myReadOnlyCI.DateTimeFormat.IsReadOnly ? "read only" : "writable" );
Console.WriteLine( "myReadOnlyCI.NumberFormat is {0}.", myReadOnlyCI.NumberFormat.IsReadOnly ? "read only" : "writable" );
}
}
/*
This code produces the following output.
myCI is writable.
myCI.DateTimeFormat is writable.
myCI.NumberFormat is writable.
myReadOnlyCI is read only.
myReadOnlyCI.DateTimeFormat is read only.
myReadOnlyCI.NumberFormat is read only.
*/
Imports System.Globalization
Public Class SamplesCultureInfo
Public Shared Sub Main()
' Creates a CultureInfo.
Dim myCI As New CultureInfo("en-US")
' Creates a read-only CultureInfo based on myCI.
Dim myReadOnlyCI As CultureInfo = CultureInfo.ReadOnly(myCI)
' Display the read-only status of each CultureInfo and their DateTimeFormat and NumberFormat properties.
If myCI.IsReadOnly Then
Console.WriteLine("myCI is read only.")
Else
Console.WriteLine("myCI is writable.")
End If
If myCI.DateTimeFormat.IsReadOnly Then
Console.WriteLine("myCI.DateTimeFormat is read only.")
Else
Console.WriteLine("myCI.DateTimeFormat is writable.")
End If
If myCI.NumberFormat.IsReadOnly Then
Console.WriteLine("myCI.NumberFormat is read only.")
Else
Console.WriteLine("myCI.NumberFormat is writable.")
End If
If myReadOnlyCI.IsReadOnly Then
Console.WriteLine("myReadOnlyCI is read only.")
Else
Console.WriteLine("myReadOnlyCI is writable.")
End If
If myReadOnlyCI.DateTimeFormat.IsReadOnly Then
Console.WriteLine("myReadOnlyCI.DateTimeFormat is read only.")
Else
Console.WriteLine("myReadOnlyCI.DateTimeFormat is writable.")
End If
If myReadOnlyCI.NumberFormat.IsReadOnly Then
Console.WriteLine("myReadOnlyCI.NumberFormat is read only.")
Else
Console.WriteLine("myReadOnlyCI.NumberFormat is writable.")
End If
End Sub
End Class
' This code produces the following output.
'
' myCI is writable.
' myCI.DateTimeFormat is writable.
' myCI.NumberFormat is writable.
' myReadOnlyCI is read only.
' myReadOnlyCI.DateTimeFormat is read only.
' myReadOnlyCI.NumberFormat is read only.
Ta otoka uniemożliwia wszelkie modyfikacje obiektu cilub obiekty zwracane przez ciwłaściwości .DateTimeFormat i ci.NumberFormat
| Produkt | Wersje |
|---|---|
| .NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
| .NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 1.0, 1.1, 1.2, 1.3, 1.4, 1.6, 2.0, 2.1 |
| UWP | 10.0 |
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